CVE-2026-74681

A flaw was found in the Linux kernel's USB subsystem, specifically within the usbio module. An incorrect buffer size validation occurs in the usbiobulkmsg function, where the bulk IN receive buffer size is mistakenly compared against the bulk OUT endpoint size instead of the actual receive buffer...

CVE-2026-74681: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: usb: misc: usbio: check ibuflen against rxbuflen in bulk msg ibuflen is the bulk IN receive buffer size, but the EMSGSIZE check in usbiobulkmsg compares it against txbuflen — the bulk OUT endpoint size. Both are taken independent...